-At which nephron site is the tubular fluid inulin concentration highest during antidiuresis?

Question

Quizplus · Accepted Answer

[IV A 2]. Because inulin, once filtered, is neither reabsorbed nor secreted, its concentration in tubular fluid reflects the amount of water remaining in the tubule. In antidiuresis, water is reabsorbed throughout the nephron (except in the thick ascending limb and cortical diluting segment). Thus, inulin concentration in the tubular fluid progressively rises along the nephron as water is reabsorbed, and will be highest in the final urine.

-At Which Nephron Site Is the Tubular Fluid Inulin Concentration